*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#080A0D;color:#C7CDD5;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}button,a{font:inherit}a{color:#8ED8FF;text-decoration:none}a:hover{text-decoration:underline;color:#b1e6ff}button{cursor:pointer}h1,h2,h3,p{margin:0}p+p{margin-top:16px}h1,h2,h3{line-height:1.35;color:#F5F7FA}h1{font-size:34px;letter-spacing:-.02em}h2{font-size:26px}h3{font-size:20px}.container{width:min(100% - 48px,1200px);margin:0 auto;min-width:0}.site-header{background:rgba(8,10,13,.96);height:74px;position:relative;z-index:20;border-bottom:1px solid rgba(255,255,255,.09)}.header-inner{max-width:1200px;margin:auto;padding:0 24px;height:100%;display:flex;justify-content:space-between;align-items:center;position:relative}.menu-button{display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;width:44px;height:44px;border:1px solid #323844;border-radius:10px;color:#C7CDD5;background:#12161C;flex-shrink:0}.menu-button span{height:2px;width:19px;background:currentColor;border-radius:2px}.brand-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(210px,38vw);display:block}.brand-center .media,.drawer-brand .media,.footer-logo .media{height:36px;min-height:0;background:transparent;border:0;padding:0}.brand-center img,.drawer-brand img,.footer-logo img{max-height:36px}.entry-button{border:1px solid #5C7CFA;background:#182947;color:#F5F7FA;border-radius:999px;min-width:112px;height:42px;padding:4px 18px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap}.channel-bar{background:#0D1015;border-bottom:1px solid rgba(255,255,255,.09)}.channel-scroller{width:min(100%,1200px);margin:auto;height:48px;display:flex;justify-content:space-between;align-items:stretch;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#394154 #0D1015}.channel-scroller a{color:#C7CDD5;display:inline-flex;align-items:center;padding:0 12px;white-space:nowrap;flex-shrink:0;position:relative;font-size:14px}.channel-scroller a[aria-current=page]{color:#6EA8FF}.channel-scroller a[aria-current=page]:after{content:"";height:2px;background:#6EA8FF;position:absolute;bottom:0;left:12px;right:12px}.menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:30;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .22s}.site-drawer{width:min(420px,86vw);height:100dvh;overflow-y:auto;position:fixed;z-index:40;top:0;left:0;background:#0D1015;box-shadow:12px 0 50px #0007;transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .22s,visibility .22s;padding:22px}.menu-open .menu-overlay{opacity:1;visibility:visible;pointer-events:auto}.menu-open .site-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.menu-open{overflow:hidden}.drawer-top{display:flex;align-items:center;justify-content:space-between;min-height:48px}.drawer-brand{width:180px}.drawer-top button{border:1px solid #323844;background:#171C23;color:white;border-radius:8px;width:40px;height:40px;font-size:27px}.drawer-note{color:#9098A3;font-size:13px;margin:10px 0 24px}.drawer-group{margin:0 0 24px}.drawer-group h2{font-size:14px;color:#9098A3;padding-bottom:8px;border-bottom:1px solid #30343d}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:3px 12px;padding-top:9px}.drawer-links a{color:#C7CDD5;padding:8px 7px;font-size:14px;border-left:2px solid transparent}.drawer-links a[aria-current=page]{color:#6EA8FF;border-left-color:#6EA8FF;background:#171C23}.page-wrap{padding-top:50px;padding-bottom:62px}.eyebrow{color:#8ED8FF;font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;margin-bottom:16px}.lead{font-size:17px;color:#C7CDD5;line-height:1.9;max-width:820px;margin-top:22px}.intro-head{max-width:900px;margin-bottom:38px}.intro-head h1{margin-bottom:8px}.article-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(220px,1fr);gap:36px;align-items:start}.article-body{min-width:0}.article-body section{margin-bottom:36px}.article-body h2{font-size:25px;margin:0 0 18px;padding-left:15px;border-left:3px solid #5C7CFA}.article-body h3{margin:23px 0 12px}.article-body p{margin:0 0 16px}.article-body p:last-child{margin-bottom:0}.aside-box{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:22px;position:sticky;top:18px}.aside-box h2{font-size:18px;margin-bottom:12px}.aside-box a{display:block;padding:9px 0;border-bottom:1px solid #30343d;font-size:14px}.aside-box a:last-child{border:0}.section{margin-top:54px}.section-header{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin-bottom:22px}.section-header p{color:#9098A3;font-size:14px;max-width:560px}.hero{display:grid;grid-template-columns:56fr 44fr;gap:38px;align-items:center}.hero h1{font-size:40px;max-width:700px}.hero .lead{margin-bottom:25px}.hero .media{height:310px}.hero-actions{display:flex;gap:20px;flex-wrap:wrap}.text-link{font-size:15px;font-weight:700}.media{width:100%;max-width:100%;min-width:0;display:flex;align-items:center;justify-content:center;background:#0D1015;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.09);padding:6px}.media img{object-fit:contain;object-position:center center;width:100%;height:100%;max-width:100%;max-height:100%;display:block}.media-placeholder{background:linear-gradient(135deg,#10141a,#161c27 54%,#0d1015)}.media-wide{aspect-ratio:16/9}.media-square{aspect-ratio:1/1}.media-banner{aspect-ratio:16/7}.media-device{aspect-ratio:9/16}.media.media-device{max-height:350px}.media.media-banner{max-height:250px}.media img[width][height]{object-fit:contain}.tile-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tile-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.tile-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.tile{background:#12161C;border:1px solid rgba(255,255,255,.09);padding:20px;border-radius:13px;min-width:0}.tile h3{font-size:18px;margin:8px 0 11px}.tile p{font-size:14px;line-height:1.8;margin-bottom:12px}.tile .media{height:162px;aspect-ratio:auto;margin-bottom:13px}.tile .index{font-size:13px;color:#6EA8FF;font-weight:bold}.split{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;align-items:center}.split.wide-text{grid-template-columns:1.8fr 1fr}.split h2{margin-bottom:16px}.split p{margin-bottom:16px}.content-panel{background:#12161C;border-radius:14px;padding:28px;border:1px solid rgba(255,255,255,.09)}.simple-list{display:grid;gap:0}.simple-list>a{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;padding:19px 0;border-bottom:1px solid rgba(255,255,255,.09)}.simple-list>a:last-child{border-bottom:0}.simple-list strong{font-size:17px;color:#F5F7FA;display:block}.simple-list small{font-size:14px;color:#9098A3;display:block;line-height:1.8;margin-top:4px}.simple-list .num{color:#6EA8FF;font-size:17px;font-weight:bold}.related{margin-top:42px;padding:24px;background:#12161C;border-radius:13px;border:1px solid rgba(255,255,255,.09)}.related h2{font-size:21px;margin-bottom:15px}.related-links{display:flex;gap:12px;flex-wrap:wrap}.related-links a{font-size:14px;border:1px solid #394154;border-radius:999px;padding:7px 15px}.page-media{margin:25px 0 30px;max-width:800px}.page-media .media{max-height:320px}.page-media .media-device{max-height:350px;width:min(100%,270px)}.faq-list details{border-bottom:1px solid #343b46;padding:17px 0}.faq-list summary{cursor:pointer;color:#F5F7FA;font-weight:700;font-size:17px}.faq-list details p{margin:11px 0 0}.site-footer{background:#050608;padding:44px 0 24px;border-top:1px solid rgba(255,255,255,.09)}.footer-grid{display:grid;grid-template-columns:1.55fr repeat(3,1fr);gap:40px}.footer-grid h2{font-size:17px;margin-bottom:14px}.footer-grid a{color:#C7CDD5;display:block;font-size:14px;margin-bottom:8px}.footer-brand p{font-size:14px;color:#9098A3;margin-top:18px}.footer-logo{display:block;max-width:190px}.footer-bottom{margin-top:36px;border-top:1px solid #282d36;padding-top:22px;display:flex;justify-content:space-between;gap:14px;font-size:13px;color:#9098A3}.footer-bottom p{max-width:700px}.back-top{position:fixed;right:20px;bottom:20px;background:#182947;border:1px solid #5C7CFA;color:white;border-radius:50%;width:43px;height:43px;z-index:10;opacity:0;visibility:hidden;pointer-events:none}.back-top.show{opacity:1;visibility:visible;pointer-events:auto}.notice{font-size:14px;color:#9098A3;border-left:3px solid #6EA8FF;padding-left:15px;margin-top:20px}.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.directory .tile{padding:22px}.directory .tile a{display:inline-block;margin:8px 15px 0 0}.only-home .intro-head{margin:0}.gif-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}.gif-pair .media{height:150px;aspect-ratio:auto}@media(max-width:980px){.container{width:calc(100% - 40px)}.tile-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:22px}.footer-grid{gap:22px}}@media(max-width:768px){.article-layout{grid-template-columns:minmax(0,1fr)}.aside-box{position:static}.split,.split.wide-text{grid-template-columns:1fr}.hero{grid-template-columns:1fr;gap:18px}.hero .hero-media{order:-1}.hero .media{height:245px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-wrap{padding-top:34px}.section{margin-top:35px}.directory{grid-template-columns:1fr 1fr}}@media(max-width:480px){body{font-size:15px}.container{width:calc(100% - 32px)}.site-header{height:62px}.header-inner{padding:0 16px}.menu-button{width:40px;height:40px}.entry-button{height:38px;min-width:84px;padding:4px 10px;font-size:12px}.brand-center{width:min(132px,35vw)}.brand-center .media{height:28px}.brand-center img{max-height:28px}.channel-scroller{height:44px;justify-content:flex-start}.channel-scroller a{font-size:13px}.hero h1{font-size:29px}.hero .media{height:195px}.page-wrap{padding-top:30px;padding-bottom:42px}h1{font-size:26px}h2{font-size:22px}h3{font-size:18px}.article-body h2{font-size:22px}.lead{font-size:15px}.tile-grid{gap:12px}.tile{padding:14px}.tile h3{font-size:16px}.tile p{font-size:13px}.tile .media{height:138px}.content-panel{padding:19px}.footer-grid{gap:22px 14px}.footer-bottom{display:block}.footer-bottom p{margin-top:8px}.section-header{display:block}.section-header p{margin-top:9px}.gif-pair{grid-template-columns:1fr}.media.media-banner{max-height:140px}.page-media .media{max-height:210px}}@media(max-width:350px){.brand-center{width:104px}.entry-button{min-width:78px;font-size:11px;padding:4px 7px}.tile-grid,.tile-grid.two,.tile-grid.four,.directory{grid-template-columns:1fr}.tile .media{height:150px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}